Heating problem the heater in the front passenger area doen`t blow heat fan works and the temp controll works when you turn it to hot it makes a klicking sound and nothing happens

Depending on the vehicle. There are a number of things to check. First check your fuses. You may have a bad heater control, a vaccum leak (depending on make and model of car) a short in the wiri g or a bad servo that switches from cold to hot. But first let the car get to operating temperature with the heat and fan completely of after the temp gauge goes up turn the heat on hot and the fan up. If it blows hot for a few seconds then back to cold then you need a heater core flush or heater core replacement

To troubleshoot this types of problem,click the link below :----http://howtobyme.blogspot.in/2012/02/heater-blows-only-from-defrost.html
--------Go through the procedure to confirm the issue.

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Engine Overheats and heater blowing cold?

http://howtobyme.blogspot.com/2011/11/engine-overheats-and-heater-blowing.html

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Heat blows cold on drivers side and hot on passenger side?

http://schematicsdiagram.blogspot.com/2011/12/heat-blows-cold-on-drivers-side-and-hot.html

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No heat on car? http://technoanswers.blogspot.in/2012/02/no-heat-on-oldsmobile-silhouette.html

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Heater blows intermittently and temp gauge goes erratic? http://technoanswers.blogspot.com/2012/01/heater-blows-intermittently-and-temp.html------------Heater blows cold? http://schematicsdiagram.blogspot.in/2012/02/heater-blows-cold.html
---------Car heater blowing warm, but not hot air? http://schematicsdiagram.blogspot.com/2011/12/car-heater-blowing-warm-but-not-hot-air.html-------- Heater/AC blower motor not working?

http://technoanswers.blogspot.in/2012/02/heaterac-blower-motor-not-working-on.html

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A/C, heater, defroster fan, not working? http://technoanswers.blogspot.in/2012/02/ac-heater-defroster-fan-not-working.html Heater problem? http://technoanswers.blogspot.in/2012/02/heater-problem-on-isuzu-trooper.html---------

This will help.Thanks.

The heater door is probably stuck in the full heat position. It could be a problem with the heater door motor or the controller - you'd have to check for both mechanical and electrical problems under the dashboard.

Most likly this van has seperate controls for driver and passenger heat and ac controls.If its blowing hot air your heat is working.These controls operate differant dampers that are electonicly controlled.If the dials arent working they would cause this problem.

Heater control valve malfunction will not cause engine to overheat unless coolant is leaking externally...Overheating going down the road can be the result of a few different things...Partly clogged radiator...Insufficient air flow due to possible fan problem...External coolant leak...Make sure fans are operting properly and have cooling system pressure tested for leaks...Gaining and losing heat on the inside of the vehicle usually means system is low on coolant but you must find out where coolant is going

You don't say whether the fan starts and shuts off with the bumps, or the heat goes cold but the fan stays on. If it's the fan shutting off and coming back, you most likely have an intermittent connection to the blower motor somewhere at the fuse box, the fan speed control switch or the fan motor, or a loose ground connection at the fan motor. The fan motor is visible under the right side speaker grille on the dash. Make sure you re-connect the short black corrugated hose to the grill vent or you won't have defrosting on that side!

The air distribution rotary switch controls where the air goes. The fan speed switch controls exactly that: fan speed. the temp rotary switch controls the coolant temp into the heater core. You need to clarify what you mean by "Also, the dash controls for the vents won't allow me to turn up the power"

You might also have one or more of the following issues:

1. is you vacuum tank properly connected and are there no leaks in the vacuum piping? The tank is in the driver side rear wheel well below the trunk deck on a convertible, and in the passenger side front fender area on the other cars. It's a white bottle with one or two hoses connected to it. If not properly on, your vacuum operated heater flaps won't move. Does the air distribution knob make sucking or hissing noises when you set it to different positions? If not, check the tank connections, look for vacuum line leaks, then suspect the vacuum valve behind the distribution knob.
2. if the air distribution rotary switch makes noises when you change its setting, but nothing happens, then suspect the vacuum solenoids that open and close the heater flaps - could be a loose vacuum line or a defective vacuum solenoid
   
3. the shaft connecting the temp control knob to the heater valve behind it may not be properly in place. This can be inspected, and adjusted if necessary, from the left side speaker/vent cutout on top of the dash. Make sure you re-connect the black flex hose to the air vent tube, or you'll get no defrosting afterwards!
4. remember, the centre vents always blow cold air; a brilliant idea from Saab so the driver (and passenger) can get fresh air in the face and stay awake while the rest of the driver, passenger and car is toasty!

Notorious for plugged heater cores. Also updated plastic restriction couplers mounted at heater core available from dealer. Try back flushing heater core. Run engine till its at operating temperature then carefully hold the inlet and outlet hose breifly with heater fan on high if hoses are nearly the same temp then flow is good , if not then core is plugged.

I have the same problem with my 2001 Tahoe. The front blower is working, its blowing strong, but its cold air even with the temp setting as high as it can get. The rear blows hot air. The engine temp guage is at about 210ish which is close to being normal (220). I just replaced the thermostate a few months ago, I don't know if its bad again, or it I deluted the antifreeze too much and it frooze the heater core, or if the heater core just went bad. Any one know what the cause could be?

sounds like the drivers temp door actuator is not working should be located on the drivers side of the air box down by the gas pedal or center dash area